7 A Complete the conversation with the words in the box. could, is, return, there, you, it. ​HELP ME PLEASE

A: Hello. Could I have a ticket to Rome, please?

B: A single or return?

A: A return please. How much is it?

B: Twenty-five euros.

A: And which platform it is?

B: Platform three. Over there.

A: Thank you!